function isNumber(data, type)
{
	var numStr=type;
	var thisChar;
	var counter=0;
	for(var i=0; i < data.length; i++)
		{
			thisChar=data.substring(i,i+1);
			if(numStr.indexOf(thisChar)!=-1)
			{counter++;}
		}
		if(counter==data.length)
		{return true;}
		else
		return false;
 }
 function checkmail(e)
          {
                var emailfilter=/^\w+[\+\.\w-]*@([\w-]+\.)*\w+[\w-]*\.([a-z]{2,4}|\d+)$/i
                var returnval=emailfilter.test(e.value);
                return returnval;
          }

function Regvalidat()
 {
   var ob = this.document.form1;
   if(ob.textfield1.value =="")
   {
     alert("Enter your first name.");
     ob.textfield1.focus();
     return false;
   }
   if(ob.textfield2.value =="")
   {
    alert("Enter your last name.");
    ob.textfield2.focus();
    return false;
   }
   if(ob.textfield3.value =="")
   {
    alert("Enter your Nationality.");
    ob.textfield3.focus();
    return false;
   }
    if(ob.textfield4.value =="")
   {
      alert("Enter the email id.");
      ob.textfield4.focus();
      return false;
	}
     if(!checkmail(ob.textfield4))
     {
        alert("Please enter valid email id.");
        ob.textfield4.select();
        return false;
     }
	  if(!checkmail(ob.textfield4))
     {
        alert("Please enter valid email id.");
        ob.textfield4.select();
        return false;
     }
	
	if(ob.textfield42.value =="")
   {
      alert("Enter your Phone No");
      ob.textfield42.focus();
      return false;
	}
	if(isNumber(ob.textfield42.value, "0123456789")!=true)
   {
       alert("Please check the Phone No. -'"+ob.textfield42.value+"'");
       ob.textfield42.select();
       return false;
   }
   if(ob.textfield74.value =="")
   {
      alert("Enter Number of Days");
      ob.textfield74.focus();
      return false;
	}
	if(isNumber(ob.textfield74.value, "0123456789")!=true)
   {
       alert("Please check the Number of Days. -'"+ob.textfield74.value+"'");
       ob.textfield74.select();
       return false;
   }
   if(ob.demo1.value =="")
   {
      alert("Select Date.");
      ob.demo1.focus();
      return false;
	}
    if(ob.select.value =="Select")
   {
      alert("Select Locations.");
      ob.select.focus();
      return false;
	}
 if(ob.select2.value =="Select")
   {
      alert("Select Room Type.");
      ob.select2.focus();
      return false;
	}

 }